I'm not expert in curry, but it seems like they can get play pretty fast and loose when they want. You have coconut curry, duck curry, and yellow curry. That's a fruit, an animal, and a color. Why not go with peanut butter? From what I understand, peanut's are a big part of Thai cooking, so if this was a Thai curry then I don't see the flavors clashing at all.
I recently went to Jitlada, a local Los Angeles Thai restaurant that is known for being very authentic. I figured, when in Rome, eat like the Thai people do (I think I messed that up). I went with the hottest curry. It didn't even look like curry. It looked like five or six hot coals on a plate. The sauce couldn't even stay liquid because it was so hot. I'm still recovering.